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geniusboy [140]
3 years ago
15

PLEASE HELP! MATHS QUESTION

Mathematics
1 answer:
Mariana [72]3 years ago
7 0
Density=8 g/cm^3
Divide it into two rectangles
Area of rectangle 1=7*2=14 cm^2
Area of rectangle 2=5*2=10 cm^2

Calculate volume of the two rectangle parts

Volume of rectangle 1=14*200=2800 cm^3
Volume of rectangle 2=10*200=2000 cm^3

Therefore volume of prism=4800 cm^3

Mass of prism=Density*Volume
=8*4800
=38400 g
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(64-8)÷4 answer ASAP please​
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Answer:

14

Step-by-step explanation:

64-8=56

56/4=14

4 0
3 years ago
PLEASE HELP!!! This is due today and I don’t understand can someone please tell me.
Thepotemich [5.8K]

Answer:

the answer would be 135 meters

Step-by-step explanation:

If, to scale on a map, 1 centimeter is 3.5 meters, them 2 centimeters is 7 meters. so on and so forth until 30. 30 (centimeters) times 3.5 (meters) is 135. hope this helped!!!!! reply if this doesn't make sense

3 0
3 years ago
Consider the function represented by 9x+3y= 12 with x as the independent variable. How can this function be written using
Ivenika [448]

Answer:

f(x)=-3x+4

(can't see some of your choices)

Step-by-step explanation:

We want x to be independent means we want to write it so when we plug in numbers we can just choose what we want to plug in for x but y's value will depend on our choosing of x.

So we need to solve for y.

9x+3y=12

Subtract 9x on both sides

     3y=-9x+12

Divide both sides by 3:

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Replace y with f(x).

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6 0
2 years ago
Photo above need help
Lilit [14]
Slope = rise/run = 3/5
3 0
2 years ago
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The height of a trapezoid can be expressed as x – 4, while the bases can be expressed as x + 4 and x + 9. if the area of the tra
AlexFokin [52]

Answer: 19 cm

<u>Step-by-step explanation:</u>

A_{trapezoid}=\frac{b_{1}+b_{2}}{2}*h

                99 = \frac{(x+4 + x+9}{2}*(x - 4)

                99 = \frac{(2x + 13}{2}*(x - 4)

              198 = (2x + 13)(x - 4)

              198 = 2x² + 5x - 52

                 0 = 2x² + 5x - 250

                 0 = 2x²- 20x + 25x - 250

                 0 = 2x(x - 10) + 25( x - 10)

                 0 = (2x + 25)(x - 10)

0 = 2x + 25     or        0 = x - 10

  -\frac{25}{2} = x      or          x = 10

Since length cannot be negative, -\frac{25}{2} can be disregarded

Larger base: x + 9  = 10 + 9   = 19

5 0
2 years ago
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